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Description
XForce | Dual 3" Varex Universal Valved Muffler | 304 Stainless Steel Oval | VMK31-300XForce Dual 3" Varex Universal Valved Muffler VMK31 300 Make it loud, make it quiet, make it yours. The XForce VMK31 300 features our patented Varex valved technology, providing enthusiasts with the ultimate exhaust solution. This universal muffler allows you to switch between a civilised, stock like sound and a wide open performance note at the touch of a button. Proudly Mandrel Bent and crafted from premium 304 Stainless Steel, this dual in, dual
XForce Dual 3" Varex Universal Valved Muffler - VMK31-300
Make it loud, make it quiet, make it yours. The XForce VMK31-300 features our patented Varex valved technology, providing enthusiasts with the ultimate exhaust solution. This universal muffler allows you to switch between a civilised, stock-like sound and a wide-open performance note at the touch of a button. Proudly Mandrel-Bent and crafted from premium 304 Stainless Steel, this dual-in, dual-out muffler is the perfect centerpiece for high-horsepower custom exhaust builds.
What's in the Box?
- Dual 3" Varex Universal Muffler
- Pre-installed Internal Valve & Actuator Motor
- 2 x Wireless Remote Key Fobs
- Control Module & Wiring Harness
Note: This is a universal component for custom fabrication. An X-pipe or Merge-pipe MUST be installed upstream of this muffler for optimal performance. Ensure a 2-inch clearance for the actuator motor during fitment.
Features:
Engineered for maximum versatility and sound control, this muffler offers the following features:
- Patented Varex Valve: Manually toggle between Closed, 25%, 50%, 75%, and Fully Open positions to suit your environment.
- Dual 3" Configuration: High-flow twin 3-inch (76mm) inlets and outlets with 2-bolt flanges for secure connection.
- Smartbox Compatible: Upgradeable to Smartbox control for smartphone app integration, geo-fencing, and automated valve modes.
- Premium 304 Stainless: Full 304-grade stainless steel construction for superior durability and a high-lustre finish.
- Compact 6"x10"x15" oval body designed for easy integration into various chassis types.
Specifications:
- Part Number: VMK31-300
- Material: 304 Stainless Steel
- Inlet/Outlet: Dual 3-Inch (Flanged)
- Body Dimensions: 6" x 10" x 15" Oval
- Control: Electronic Remote (Wireless)
- Required Upstream: Merge-pipe or X-pipe
Important Information
- The image shown may not reflect the actual product
- Shipping times may vary depending on destination and stock availability
Vehicle Applications:
| Make | Model | From | To | Body | Series | Engine | Variant | Drivetrain |
|---|---|---|---|---|---|---|---|---|
| Universal | Custom Fabrication | Any | Any | Any | N/A | Any | Custom Build | Any |
Warranty Information
| Product Type | Warranty Period |
|---|---|
| 304 & 201 Stainless Steel Exhaust Systems | 60 Months |
| Accessories | 12 Months |
| Catalytic Converters | 12 Months |
| Electronic Products (Including SmartBox) | 12 Months |
| Mild Steel & 409 Stainless Steel Exhaust Systems | 24 Months |
| Mild Steel Headers | 12 Months |
| Stainless Steel Headers | 24 Months |
| Universal 304 Stainless Steel Mufflers | 24 Months |
| Universal Mild Steel & 409 Stainless Steel Mufflers | 12 Months |
Payment & Security
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Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.1 ★★★★★
Based on 22 reviews
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Product Reviews
★★★★★ 5
THE BEST LOTION I HAVE EVER USED
Scent: Sweet Vanilla & Soft Wood, Size: 18.5 Fl Oz (Pack of 1)
THIS WINTER AND HAVING THE HEAT ON HIGHER THEN I NORMALLY DO HAS DONE A NUMBER ON MY SKIN. IT IS SO DRY AND I HAVE TRIED SO MANY THINGS AND NOTHING HAS REALLY WORKED. SO I GAVE IN AND SPENT THE MONEY AND TRIED THIS. I AM SO GLAD I DID. THIS WAS WORTH EVERY PENNY. I LOVED IT SO MUCH I BOUGHT ANOTHER BOTTLE JUST TO HAVE SO I WOULDN'T RUN OUT. I START OUT WITH THE BODY WASH WITH THE OLAY SUPER SERUM BODY WASH AND JUST AFTER ONE WASH MY SKIN WAS MUCH SOFTER AND SMOOTHER. YOU DO NOT NEED A LOT AS IT LATHERS UP NICELY IT SMELLS GREAT AND IT RINSES OFF GREAT LEAVING YOUR SKIN FEELING CLEAN AND SOFT. IT DOESN'T HAVE A STRONG SCENT TO IT WHICH IS FINE . I FOLLOW IT WITH IT WITH THIS SUPER SERUM LOTION JUST TO MAKE SURE THE SKIN STAYS SOFT. THIS LOTION IS SO SOFT AND SILKY. IT ABSORBS QUICKLY INTO YOUR SKIN WITHOUT LEAVING YOUR SKIN FEELING GREASY. IT IS LIGHTWEIGHT AND LEAVES YOU FEELING SOFT WITHOUT THAT DRY CRACKED APPEARANCE. THE SCENT ISN'T VERY STRONG TO ME WHICH IS FINE BECAUSE I WEAR PERFUME SO I DO NOT HAVE TO WORRY ABOUT THE SCENTS MIXING. I DEFINITELY RECOMMEND THIS REGIMEN TO ANYONE SUFFERING FROM DRY SKIN.
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Reviewed in the United States on March 27, 2026
★★★★★ 4
4.5/5; Great product, but smells strong
Scent: Sweet Vanilla & Soft Wood, Size: 10 Fl Oz (Pack of 1)
Context:
To start off, I should say that I have dry skin. Like, VERY dry skin. In purchasing this item, I wanted a product that I could consistently apply every single day to hydrate my skin.
Product:
The application of this stuff was like a dream. If you’ve ever tried using ANY sort of lotion (Lubriderm, Cetaphil, etc.) you’d know that usually it leaves that greasy texture on your hands that you have to wash off. This one doesn’t do ANY of that. The cream melts into your skin and absorbs very easily, unlike other lotions. I didn’t need that much to apply to my entire body. The results were great—my skin looked better and felt softer. If there was to be a con, it would be how strong the fragrance of the lotion is. This stuff smells STRONG. It’s not an unpleasant scent, but if you wanted to wear a perfume or body spray along with it, good luck because I can’t see a world where the cream won’t overpower or at least show through your preferred scent.
TLDR
Overall, good product with dreamlike application, but strength of scent could be dealbreaker for some.
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Reviewed in the United States on April 26, 2026
★★★★★ 5
This everyday body lotion is the bomb!
Scent: Collagen, Size: 17 Fl Oz (Pack of 1)
This body lotion is absolutely fabulous! It really does make the skin on my thighs and abdomen look and feel firmer and the skin on my arms, legs, hands, and feet is noticeably softer and more hydrated without looking greasy or feeling sticky. I even use it on my neck and my face, which has tended to be more dry than oily as I've aged. I also really appreciate that the scent is pleasant enough to stand on its own but subtle enough to work well with other fragrances. I don't think that I have ever been this satisfied with a health/beauty product at such an affordable price point. I even purchased a few extra bottles to gift to friends and family.
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Reviewed in the United States on May 13, 2026
★★★★★ 5
Wow - my new favorites 💜👍😀
Scent: Retinol, Size: 17 Fl Oz (Pack of 1)
I just purchased this and tried it last night for the first time along with the firming version. I didn't take photos because I was skeptical as a product I had purchased from a different line for more money didn't work. This morning I notice that not only does my skin feel more hydrated but the texture appears more smooth. I recently turned 75 & lost my husband a few months ago and having been a care giver for awhile and put taking care of me aside. These products and body wash are great and I like the fragrance.
Please give them a try. To have something show this much difference over night is incredible. They are also affordable which is a plus for me. Thank you Olay.
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Reviewed in the United States on April 24, 2026
★★★★★ 5
Wonderful
Scent: Sweet Vanilla & Soft Wood, Size: 18.5 Fl Oz (Pack of 1)
I've only tried it for the first time, so I can't speak to performance, but I love 5his Product! It isn't greasy, it absorbs quickly & my skin feels much softer. The scent is just beautiful. It's light & not closing like some. Recommend highly.
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Reviewed in the United States on May 18, 2026
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